A unique botanical garden housed in three giant geodesic domes.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

A remote hill on a stretch of country road where the laws of physics are defied... or so it seems.

Five acres of divinely inspired folk art.

Restaurant in Northern Wisconsin comes with a unique feature: a grassy roof covered in living goats.

This quirky museum has a collection of more than 15,000 bobblehead dolls.

The bugs crawling down the front of this office building are almost as big as a '68 VW Beetle.

Statue dedicated to the star of an old television show.

Vikings and Evangelicals have both had a hand in this replica medieval church.

This pebble beach is so beautiful that taking its rocks is against the law.

This cave holds a surprisingly colorful variety of geological oddities.

These molds for fiberglass statues have formed an eerie, accidental sculpture park.

"World's largest scrap metal sculpture" stands in an outdoor sculpture garden in the middle of Wisconsin.

These Great Lakes sea caves accessible by boat in the summer turn into temples of ice reachable by foot in the winter.

"Looks so real, it's scary!"

A bizarre house filled with an astounding array of collections.

A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.

This Wild West attraction is alive with glitching automatons.

This vintage train once gave new meaning to “swimming upstream.”

An ode to South Dakota's state fish.

A relic of roadside lore and perhaps the first of its kind in North America.

One of the first intercontinental ballistic missile sites in the United States.

The final resting place of the Hunkpapa Lakota leader Tatanka Iyotaka, commonly known by the English translation Sitting Bull.